US2501008A
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US
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Assignee: Individual
•
Filing: 1948-08-23
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Granted: 1950-03-21
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Expires: 1968-08-23
Abstract
No abstract record available.
Inventors
- 👤 John G Schramm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:08
CPC Classifications
F; F16; F16K; F16K35/00; F16K35/02; F16K35/027; F24; F24C; F24C3/00; F24C3/12; F24C3/124; G; G05; G05G; G05G1/00; G05G1/08; G05G1/082; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20576; Y10T74/20732; Y10T74/20762
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-20 | 1953-09-19 | 1954-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-20 | 1957-09-19 | 1958-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-20 | 1961-09-19 | 1962-03-21 | $7700.00 | Window Closed / Lapsed |